National Route 31 (South Korea)

National Route 31 is a national highway that runs from the city of Busan, Gijang County, in South Korea, to Singosan (Kosan) and Anbyeon counties in North Korea. Because of the division of the Korean Peninsula, it effectively ends in Yanggu. The route was established on 31 August 1971.대통령령 제5771호 일반국도노선지정령, 1971년 8월 31일 제정.

History August 31, 1971: National Route No. 31 Pohang ~ Singosan Line was designated by the General National Highway Route Designation Order.Presidential Decree No. 5771 General National Highway Route Designation Order, enacted August 31, 1971. March 14, 1973: Due to the construction of Soyanggang Dam, the road section from Sinnam-ri, Nam-myeon, Inje-gun to Won-ri, Nam-myeon, Yanggu-gun (15.5 km) that was to be submerged was changed to 13.921 km.Ministry of Construction Notice No. 93, March 14, 1973. February 22, 1980: 602 m section at Johang-dong, Naemyeon, Hongcheon-gun opened and existing 960 m section abolished.Wonju Regional Construction and Management Administration Notice No. 1, February 22, 1980. March 14, 1981: Starting point extended from 'Pohang-si, Gyeongsangbuk-do' to 'Ulsan-si, Gyeongsangnam-do'. Accordingly, changed from 'Pohang ~ Singosan Line' to 'Ulsan ~ Singosan Line'.Presidential Decree No. 10247 General National Highway Route Designation Order, partially amended March 14, 1981. April 13, 1981: 72 km section from Sangnam-ri, Girin-myeon, Inje-gun to Dochon-ri, Nam-myeon, Yanggu-gun upgraded to national highway and opened, existing designated section from Sangnam-ri, Girin-myeon, Inje-gun to Dochon-ri, Nam-myeon, Yanggu-gun (50 km) abolished.Wonju Regional Construction and Management Administration Notice No. 13, April 13, 1981. May 8, 1981: 71.7 km section from Suryeom-ri, Yangnam-myeon, Wolseong-gun to Daeheung-dong, Pohang-si upgraded to national highway and opened.Daegu Regional Construction and Management Administration Notice No. 17, May 8, 1981. May 12, 1981: 22.62 km section from Sinhyeon-ri to Sinpyeong-ri, Gangdong-myeon, Ulju-gun upgraded to national highway and opened.Busan Regional Construction and Management Administration Notice No. 15, May 12, 1981. May 30, 1981: Road zone changed to 98 km section extended according to the amendment of Presidential Decree No. 10247 General National Highway Route Designation Order.Ministry of Construction Notice No. 191, May 30, 1981. January 28, 1987: Existing designated section from Hyeoldong, Taebaek-si to Cheonpyeong-ri (Chilrang-ri), Sangdong-eup, Yeongwol-gun (13.5 km) abolished.Wonju Regional Construction and Management Administration Notice No. 2, January 28, 1987. July 15, 1994: 2 km section at Daehwa-ri, Daehwa-myeon, Pyeongchang-gun opened.Wonju Regional Construction and Management Administration Notice No. 1994-30, July 15, 1994. January 12, 1995: Yanggu ~ Wontong Road (Ipyeong-ri, Inje-eup, Inje-gun ~ Yongha-ri, Nam-myeon, Yanggu-gun) 19.9 km section opened.Wonju Regional Construction and Management Administration Notice No. 1995-1, January 12, 1995. July 1, 1996: Starting point extended from 'Ulsan-si, Gyeongsangnam-do' to 'Ilgwang-myeon, Gijang-gun, Busan Metropolitan City'. Accordingly, changed to 'Busan ~ Singosan Line'.Presidential Decree No. 15101 General National Highway Route Designation Order, partially amended July 1, 1996. June 15, 1997: Section from Deokgu-ri to Naedeok-ri, Sangdong-eup, Yeongwol-gun opened, existing 400 m section abolished.Wonju Regional Construction and Management Administration Notice No. 1997-69, June 16, 1997. September 20, 1997: Seomchon Bridge (Seomchon-ri, Irwol-myeon, Yeongyang-gun) 940 m section reconstruction opened, existing 360 m section abolished.Busan Regional Construction and Management Administration Notice No. 1997-198, No. 1997-199, September 20, 1997. July 7, 1998: Guji Bridge (Guji-ri, Gigye-myeon, Buk-gu, Pohang-si) 660 m section reconstruction opened, existing section abolished.Busan Regional Construction and Management Administration Notice No. 1998-227, No. 1998-228, June 22, 1998. May 15, 1999: Guryongpo ~ Pohang Road (Yakjeon-ri, Donghae-myeon, Nam-gu, Pohang-si ~ Irwol-dong) 2.25 km section expansion opened.Busan Regional Construction and Management Administration Notice No. 1999-93, May 6, 1999. December 31, 1999: Guryongpo ~ Pohang Road (Seok-ri, Donghae-myeon, Nam-gu, Pohang-si ~ Yakjeon-ri) 1.1 km section expansion opened.Busan Regional Construction and Management Administration Notice No. 1999-286, December 30, 1999. February 24, 2000: Seok-ri, Donghae-myeon, Nam-gu, Pohang-si, Gyeongsangbuk-do ~ Yugang-ri, Yeonil-eup, Buk-gu (19.1 km section) designated as Automobile-only Road.Busan Regional Construction and Management Administration Notice No. 2000-17, February 24, 2000. December 20, 2000: Guryongpo ~ Pohang Road (Hajeong-ri, Guryongpo-eup, Nam-gu, Pohang-si ~ Sangjeong-ri, Donghae-myeon) 6.24 km section expansion opened.Busan Regional Construction and Management Administration Notice No. 2000-309, December 23, 2000. January 22, 2001: Daeryeon Intersection (Daeryeon-ri, Heunghae-eup, Buk-gu, Pohang-si) on Gangdong ~ Heunghae Road grade separation opened.Busan Regional Construction and Management Administration Notice No. 2001-8, January 27, 2001. May 25, 2001: Guryongpo ~ Pohang Road (Sangjeong 1 Overpass, Sangjeong-ri, Donghae-myeon, Nam-gu, Pohang-si ~ Seokdong 1 Overpass, Seok-ri) 1.96 km section expansion opened.Busan Regional Construction and Management Administration Notice No. 2001-83, May 18, 2001. September 19, 2001: Guryongpo ~ Pohang Road (Hajeong-ri, Guryongpo-eup, Nam-gu, Pohang-si ~ Irwol-dong) 12.48 km section expansion opened.Busan Regional Construction and Management Administration Notice No. 2001-178, September 18, 2001. December 29, 2001: Hapgang-ri, Inje-eup, Inje-gun ~ Wontong-ri, Buk-myeon (4.3 km section) expansion opened, existing 6.9 km section abolished.Wonju Regional Construction and Management Administration Notice No. 2001-153, December 29, 2001. December 31, 2001: Bunam Bypass Road (Daejeon-ri, Bunam-myeon, Cheongsong-gun ~ Gamyeon-ri) 2.484 km section expansion opened and existing 3.19 km section abolished,Busan Regional Construction and Management Administration Notice No. 2001-258, No. 2001-259, December 31, 2001. Cheongsong ~ Pacheon Road (Geumgok-ri, Cheongsong-eup, Cheongsong-gun ~ Gwan-ri, Pacheon-myeon) 5.72 km section expansion opened and existing 6.14 km section abolished.Busan Regional Construction and Management Administration Notice No. 2001-260, No. 2001-261, December 31, 2001. November 12, 2002: Yangnam Bypass Road (Suryeom-ri, Yangnam-myeon, Gyeongju-si ~ Haseo-ri) 3.18 km section opened, existing 3.31 km section abolished.Busan Regional Construction and Management Administration Notice No. 2002-325, No. 2002-326, November 5, 2002. January 1, 2003: Yeongyang Bypass Road (Hyeon-ri, Yeongyang-eup, Yeongyang-gun ~ Dongbu-ri) 6.005 km section expansion opened, existing 4.5 km section abolished.Busan Regional Construction and Management Administration Notice No. 2002-397, No. 2002-398, December 31, 2002. November 9, 2005: Yugang-ri, Yeonil-eup, Nam-gu, Pohang-si ~ Seonggok-ri, Heunghae-eup, Buk-gu (9.58 km section) designated as Automobile-only Road.Busan Regional Construction and Management Administration Notice No. 2005-178, Pohang-si Notice No. 2005-851, November 9, 2005. February 16, 2006: Bonggil-ri, Yangbuk-myeon, Gyeongju-si (1.3 km section) relocation opened, existing 1.8 km section abolished.Busan Regional Construction and Management Administration Notice No. 2006-17, No. 2006-18, February 20, 2006. December 27, 2006: Pohang-si National Highway Alternative Bypass Road (Mundeok ~ Yugang Road, Ubok-ri, Yeonil-eup, Nam-gu, Pohang-si ~ Yugang-ri) 5.64 km section new construction opened.Busan Regional Construction and Management Administration Notice No. 2006-223, December 22, 2006. December 27, 2007: Suryeom-ri, Yangnam-myeon, Gyeongju-si (400 m section) on Ulsan ~ Gangdong Road expansion opened.Busan Regional Construction and Management Administration Notice No. 2007-266, December 18, 2007. March 5, 2009: Sangyeonam Intersection ~ Sinmyeong Intersection (Yeonam-dong, Buk-gu, Ulsan Metropolitan City ~ Sinmyeong-dong) 11 km section on Ulsan ~ Gangdong Road designated as Automobile-only Road.Ulsan Metropolitan City Notice No. 2009-279, March 5, 2009. July 10, 2009: Donggang Bridge (Hasong-ri, Yeongwol-eup, Yeongwol-gun ~ Deokpo-ri) section expansion opened.Wonju Regional Construction and Management Administration Notice No. 2009-48 , July 10, 2009. June 28, 2010: Imdang ~ Dumil Road (Imdang-ri, Dong-myeon, Yanggu-gun ~ Wolun-ri) 3.63 km section realignment opened.Wonju Regional Construction and Management Administration Notice No. 2010-39 , July 6, 2010. September 14, 2010: Bukssang-ri, Nam-myeon, Yeongwol-gun section realignment.Wonju Regional Construction and Management Administration Notice No. 2010-60 , September 14, 2010. June 10, 2011: Cheoyong-ri, Onsan-eup, Ulju-gun, Ulsan Metropolitan City ~ Duwang-dong, Nam-gu (6.5 km section) designated as Automobile-only Road.Busan Regional Construction and Management Administration Notice No. 2011-85, Ulsan Metropolitan City Notice No. 2011-520, June 10, 2011. September 27, 2011: Icheon-ri, Ilgwang-myeon, Gijang-gun, Busan Metropolitan City ~ Gangyang-ri, Onsan-eup, Ulju-gun, Ulsan Metropolitan City (19.09 km section) designated as Automobile-only Road.Busan Regional Construction and Management Administration Notice No. 2011-170, September 27, 2011. December 23, 2011: Pohang-si National Highway Alternative Bypass Road (Yugang-ri, Yeonil-eup, Pohang-si ~ Daeryeon-ri, Heunghae-eup, 4.6 km section and Seok-ri, Donghae-myeon, Pohang-si ~ Daegak-ri, Daesong-myeon, 11.74 km section) new construction opened.Busan Regional Construction and Management Administration Notice No. 2011-237, December 16, 2011. September 27, 2012: Eupcheon-ri, Yangnam-myeon, Gyeongju-si ~ Bonggil-ri, Yangbuk-myeon (6.0 km section) expansion opened, existing 6.9 km section abolished.Busan Regional Construction and Management Administration Notice No. 2012-176, No. 2012-177, September 20, 2012. July 1, 2014: Onsan ~ Duwang Road (Cheoyong-ri, Onsan-eup, Ulju-gun ~ Duwang-dong, Nam-gu) 6.5 km section expansion opened.Busan Regional Construction and Management Administration Notice No. 2014-318, June 30, 2014. October 29, 2014: Ipam Bypass Road (Samsan-ri, Ipam-myeon, Yeongyang-gun ~ Singu-ri) 2.06 km section new construction openedBusan Regional Construction and Management Administration Notice No. 2014-200, October 30, 2014. and existing 2.3 km section abolished.Busan Regional Construction and Management Administration Notice No. 2014-203, October 30, 2014. December 26, 2014: Gijang ~ Jangan Road (Icheon-ri, Ilgwang-myeon, Gijang-gun ~ Imnang-ri, Jangan-eup) 6.03 km section new construction opened, existing Samseong-ri, Ilgwang-myeon, Gijang-gun ~ Wolnae-ri, Jangan-eup (9.57 km section) abolished.Busan Regional Construction and Management Administration Notice No. 2014-241, No. 2014-242, December 24, 2014. December 30, 2014: Yeongwol ~ Jungdong Bypass Road (Nokjeon-ri, Jungdong-myeon, Yeongwol-gun ~ Imok-ri) 4.0 km section opened,Wonju Regional Construction and Management Administration Notice No. 2014-469 , December 26, 2014. Gyeongju ~ Gampo Road (Najeong-ri, Gampo-eup, Gyeongju-si ~ Jeonchon-ri) 570 m section expansion opened.Busan Regional Construction and Management Administration Notice No. 2014-249, No. 2014-250, December 30, 2014. December 31, 2014: Dangwol-ri, Onsan-eup, Ulju-gun (420 m section) partially opened.Busan Regional Construction and Management Administration Notice No. 2014-251, January 2, 2015. June 10, 2015: Nammyeon Bypass Road (Juk-ri, Nam-myeon, Yanggu-gun ~ Yachon-ri) 6.64 km section expansion opened, existing Guam-ri, Nam-myeon, Yanggu-gun ~ Yachon-ri (8.14 km section) abolished.Wonju Regional Construction and Management Administration Notice No. 2015-43, June 4, 2015.